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Hf2MnZn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Hf2MnZn ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to one Mn and one Zn atom. The Hf–Mn bond length is 2.13 Å. The Hf–Zn bond length is 3.01 Å. Mn is bonded in a linear geometry to two equivalent Hf atoms. Zn is bonded in a linear geometry to two equivalent Hf atoms.
HfFeSb crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Hf is bonded in a 9-coordinate geometry to six equivalent Fe and five equivalent Sb atoms. There are a spread of Hf–Fe bond distances ranging from 2.80–3.36 Å. There are a spread of Hf–Sb bond distances ranging from 2.91–2.95 Å. Fe is bonded in a 12-coordinate geometry to six equivalent Hf, two equivalent Fe, and four equivalent Sb atoms. Both Fe–Fe bond lengths are 3.03 Å. There are a spread of Fe–Sb bond distances ranging from 2.53–2.57 Å. Sb is bonded in a 9-coordinate geometry to five equivalent Hf and four equivalent Fe atoms.
Hf2RhNi crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Hf2RhNi ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to one Rh and one Ni atom. The Hf–Rh bond length is 2.33 Å. The Hf–Ni bond length is 2.34 Å. Rh is bonded in a linear geometry to two equivalent Hf atoms. Ni is bonded in a linear geometry to two equivalent Hf atoms.
Hf2Ni3Si is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Hf is bonded in a 12-coordinate geometry to nine equivalent Ni and three equivalent Si atoms. There are three shorter (2.77 Å) and six longer (2.92 Å) Hf–Ni bond lengths. All Hf–Si bond lengths are 2.91 Å. Ni is bonded to six equivalent Hf, four equivalent Ni, and two equivalent Si atoms to form NiHf6Si2Ni4 cuboctahedra that share corners with four equivalent SiHf6Ni6 cuboctahedra, corners with fourteen equivalent NiHf6Si2Ni4 cuboctahedra, edges with six equivalent NiHf6Si2Ni4 cuboctahedra, faces with six equivalent SiHf6Ni6 cuboctahedra, and faces with twelve equivalent NiHf6Si2Ni4 cuboctahedra. There are two shorter (2.49 Å) and two longer (2.50 Å) Ni–Ni bond lengths. Both Ni–Si bond lengths are 2.42 Å. Si is bonded to six equivalent Hf and six equivalent Ni atoms to form SiHf6Ni6 cuboctahedra that share corners with twelve equivalent NiHf6Si2Ni4 cuboctahedra, edges with six equivalent SiHf6Ni6 cuboctahedra, faces with two equivalent SiHf6Ni6 cuboctahedra, and faces with eighteen equivalent NiHf6Si2Ni4 cuboctahedra.
Hf2TcPt crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Hf2TcPt ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to one Tc and one Pt atom. The Hf–Tc bond length is 2.28 Å. The Hf–Pt bond length is 2.56 Å. Tc is bonded in a linear geometry to two equivalent Hf atoms. Pt is bonded in a linear geometry to two equivalent Hf atoms.
HfNi2In crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Hf is bonded in a distorted body-centered cubic geometry to eight equivalent Ni and two equivalent In atoms. All Hf–Ni bond lengths are 2.67 Å. Both Hf–In bond lengths are 3.10 Å. Ni is bonded in a 8-coordinate geometry to four equivalent Hf and four equivalent In atoms. All Ni–In bond lengths are 2.85 Å. In is bonded in a 8-coordinate geometry to two equivalent Hf and eight equivalent Ni atoms.
HfCo3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Hf is bonded to twelve Co atoms to form HfCo12 cuboctahedra that share corners with six equivalent HfCo12 cuboctahedra, corners with twelve CoHf4Co8 cuboctahedra, edges with eighteen CoHf4Co8 cuboctahedra, faces with eight equivalent HfCo12 cuboctahedra, and faces with twelve CoHf4Co8 cuboctahedra. There are six shorter (2.67 Å) and six longer (2.69 Å) Hf–Co bond lengths. There are three inequivalent Co sites. In the first Co site, Co is bonded to four equivalent Hf and eight Co atoms to form distorted CoHf4Co8 cuboctahedra that share corners with four equivalent HfCo12 cuboctahedra, corners with fourteen CoHf4Co8 cuboctahedra, edges with six equivalent HfCo12 cuboctahedra, edges with twelve CoHf4Co8 cuboctahedra, faces with four equivalent HfCo12 cuboctahedra, and faces with sixteen CoHf4Co8 cuboctahedra. There are a spread of Co–Co bond distances ranging from 2.48–2.85 Å. In the second Co site, Co is bonded to four equivalent Hf and eight equivalent Co atoms to form distorted CoHf4Co8 cuboctahedra that share corners with four equivalent HfCo12 cuboctahedra, corners with fourteen CoHf4Co8 cuboctahedra, edges with six equivalent HfCo12 cuboctahedra, edges with twelve equivalent CoHf4Co8 cuboctahedra, faces with four equivalent HfCo12 cuboctahedra, and faces with sixteen CoHf4Co8 cuboctahedra. In the third Co site, Co is bonded to four equivalent Hf and eight equivalent Co atoms to form distorted CoHf4Co8 cuboctahedra that share corners with four equivalent HfCo12 cuboctahedra, corners with fourteen CoHf4Co8 cuboctahedra, edges with six equivalent HfCo12 cuboctahedra, edges with twelve equivalent CoHf4Co8 cuboctahedra, faces with four equivalent HfCo12 cuboctahedra, and faces with sixteen CoHf4Co8 cuboctahedra.
Hf2MoPt is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to four equivalent Mo and four equivalent Pt atoms. All Hf–Mo bond lengths are 2.86 Å. All Hf–Pt bond lengths are 2.86 Å. Mo is bonded in a body-centered cubic geometry to eight equivalent Hf atoms. Pt is bonded in a body-centered cubic geometry to eight equivalent Hf atoms.
Hf2MnNi crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Hf2MnNi ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to one Mn and one Ni atom. The Hf–Mn bond length is 2.30 Å. The Hf–Ni bond length is 2.33 Å. Mn is bonded in a linear geometry to two equivalent Hf atoms. Ni is bonded in a linear geometry to two equivalent Hf atoms.
Hf2TcMn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Hf2TcMn ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to one Tc and one Mn atom. The Hf–Tc bond length is 2.23 Å. The Hf–Mn bond length is 2.42 Å. Tc is bonded in a linear geometry to two equivalent Hf atoms. Mn is bonded in a linear geometry to two equivalent Hf atoms.
HfIrGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Hf is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Ge atoms. There are a spread of Hf–Ir bond distances ranging from 3.00–3.07 Å. There are three shorter (2.82 Å) and two longer (2.86 Å) Hf–Ge bond lengths. Ir is bonded in a 10-coordinate geometry to six equivalent Hf and four equivalent Ge atoms. There are three shorter (2.50 Å) and one longer (2.56 Å) Ir–Ge bond lengths. Ge is bonded in a 9-coordinate geometry to five equivalent Hf and four equivalent Ir atoms.
MgHf2Re crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two MgHf2Re ribbons oriented in the (1, 0, 0) direction. Mg is bonded in a linear geometry to two equivalent Hf atoms. Both Mg–Hf bond lengths are 3.27 Å. Hf is bonded in a distorted linear geometry to one Mg and one Re atom. The Hf–Re bond length is 2.28 Å. Re is bonded in a linear geometry to two equivalent Hf atoms.
Hf2CoCu is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to four equivalent Co and four equivalent Cu atoms. All Hf–Co bond lengths are 2.76 Å. All Hf–Cu bond lengths are 2.76 Å. Co is bonded in a body-centered cubic geometry to eight equivalent Hf atoms. Cu is bonded in a body-centered cubic geometry to eight equivalent Hf atoms.
Hf2RePt crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Hf2RePt ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to one Re and one Pt atom. The Hf–Re bond length is 2.32 Å. The Hf–Pt bond length is 2.56 Å. Re is bonded in a linear geometry to two equivalent Hf atoms. Pt is bonded in a linear geometry to two equivalent Hf atoms.
Hf2IrNi crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Hf2IrNi ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to one Ir and one Ni atom. The Hf–Ir bond length is 2.35 Å. The Hf–Ni bond length is 2.33 Å. Ir is bonded in a linear geometry to two equivalent Hf atoms. Ni is bonded in a linear geometry to two equivalent Hf atoms.
RbMg6HfO7 crystallizes in the tetragonal P4mm space group. The structure is two-dimensional and consists of one RbMg6HfO7 sheet oriented in the (0, 0, 1) direction. Rb is bonded in a 4-coordinate geometry to four equivalent O atoms. All Rb–O bond lengths are 2.70 Å. There are four inequivalent Mg sites. In the first Mg site, Mg is bonded to five O atoms to form a mixture of edge and corner-sharing MgO5 square pyramids. There are four shorter (2.12 Å) and one longer (2.43 Å) Mg–O bond lengths. In the second Mg site, Mg is bonded to five O atoms to form MgO5 square pyramids that share corners with five MgO5 square pyramids, corners with four equivalent MgO5 trigonal bipyramids, and edges with four equivalent HfO6 octahedra. There are one shorter (2.01 Å) and four longer (2.15 Å) Mg–O bond lengths. In the third Mg site, Mg is bonded in a 2-coordinate geometry to three O atoms. There are two shorter (2.18 Å) and one longer (2.64 Å) Mg–O bond lengths. In the fourth Mg site, Mg is bonded to five O atoms to form distorted MgO5 trigonal bipyramids that share corners with two equivalent HfO6 octahedra, corners with two equivalent MgO5 square pyramids, corners with four equivalent MgO5 trigonal bipyramids, edges with two equivalent MgO5 square pyramids, and edges with four equivalent MgO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 71°. There are a spread of Mg–O bond distances ranging from 1.92–2.24 Å. Hf is bonded to six O atoms to form HfO6 octahedra that share corners with four equivalent HfO6 octahedra, corners with four equivalent MgO5 trigonal bipyramids, and edges with four equivalent MgO5 square pyramids. The corner-sharing octahedral tilt angles are 2°. There are a spread of Hf–O bond distances ranging from 2.03–2.15 Å. There are five inequivalent O sites. In the first O site, O is bonded to four equivalent Mg and one Hf atom to form distorted corner-sharing OHfMg4 trigonal bipyramids. In the second O site, O is bonded in a 5-coordinate geometry to four equivalent Mg and one Hf atom. In the third O site, O is bonded in a 6-coordinate geometry to six Mg atoms. In the fourth O site, O is bonded to two equivalent Rb and three Mg atoms to form a mixture of distorted edge and corner-sharing ORb2Mg3 trigonal bipyramids. In the fifth O site, O is bonded in a 4-coordinate geometry to three Mg and two equivalent Hf atoms.
Hf2VTc crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Hf2VTc ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to one V and one Tc atom. The Hf–V bond length is 2.78 Å. The Hf–Tc bond length is 2.25 Å. V is bonded in a linear geometry to two equivalent Hf atoms. Tc is bonded in a linear geometry to two equivalent Hf atoms.
HfZrFe4 is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Hf is bonded in a 12-coordinate geometry to four equivalent Zr and twelve equivalent Fe atoms. All Hf–Zr bond lengths are 3.04 Å. All Hf–Fe bond lengths are 2.91 Å. Zr is bonded in a 12-coordinate geometry to four equivalent Hf and twelve equivalent Fe atoms. All Zr–Fe bond lengths are 2.91 Å. Fe is bonded to three equivalent Hf, three equivalent Zr, and six equivalent Fe atoms to form a mixture of face, edge, and corner-sharing FeHf3Zr3Fe6 cuboctahedra. All Fe–Fe bond lengths are 2.48 Å.